“In 40 years there will be more people in Africa than in Europe and the Americas…the future depends on when Africa will get out of poverty and have 2-child families.”
- Hans Rosling (Co-Founder of the Gapminder Foundation)
Check out Rosling's organization, Gapminder, and the database of statistics on world trends and indicators. We find particularly interesting the visuals below, which compare fertility rates to life expectancy over the past 200 years. Notice how Sub Saharan African countries tend to lag behind the rest of the world's progression to smaller families and longer lives.